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311231043241 = 1261124679331
BaseRepresentation
bin1001000011101101101…
…00001101011010101001
31002202100020010010201121
410201312310031122221
520044400121340431
6354551053215241
731325411134546
oct4416664153251
91082306103647
10311231043241
1110aaa08a0318
125039a791521
132346c88c321
14110c6995bcd
15816868a611
hex4876d0d6a9

311231043241 has 4 divisors (see below), whose sum is σ = 311255735184. Its totient is φ = 311206351300.

The previous prime is 311231043239. The next prime is 311231043271. The reversal of 311231043241 is 142340132113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 311231043241 - 21 = 311231043239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311231043271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12327055 + ... + 12352276.

It is an arithmetic number, because the mean of its divisors is an integer number (77813933796).

Almost surely, 2311231043241 is an apocalyptic number.

It is an amenable number.

311231043241 is a deficient number, since it is larger than the sum of its proper divisors (24691943).

311231043241 is a wasteful number, since it uses less digits than its factorization.

311231043241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24691942.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 311231043241 its reverse (142340132113), we get a palindrome (453571175354).

The spelling of 311231043241 in words is "three hundred eleven billion, two hundred thirty-one million, forty-three thousand, two hundred forty-one".

Divisors: 1 12611 24679331 311231043241